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VARVARA [1.3K]
3 years ago
6

About 1% of the population has a particular genetic mutation. 700 people are randomly selected. Find the standard deviation for

the number of people with the genetic mutation in such groups of 700.
Mathematics
1 answer:
Anton [14]3 years ago
5 0

Answer: 2.632

Step-by-step explanation:

Given : The probability that the population has a particular genetic mutation = 1 % = 0.01

Let X be a random variable representing the number of people with genetic mutation in a group of 700 people.

Now, X follows the binomial distribution with parameters:

n=700;\ p=0.01

The standard deviation for binomial distribution is given by :-

\sigma=\sqrt{np(1-p)}\\\\=\sqrt{700\times0.01(1-0.01)}\\\\=2.6324893162\approx2.632

Hence, the standard deviation = 2.632

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Hello!

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Looking at the picture there are

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3 years ago
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The vertex of the parabola is at the point (2,-5). which of the equations below could be the one for this parabola?
timofeeve [1]
Hello,
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7 0
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Squareroot(y-1) + 3 = y
jek_recluse [69]
Note:xy means x times y and x(y) means the same thing

so
first we get rid of square root then
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xy=0 then x or/and y=0



squareroot(y-1)+3=y

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square both sides (since they are equal, you should be able to square both sides and still make it true)

(squareroot(y-1))^2=(y-3)^2
(y-1)=(y-3)(y-3)
y-1=y^2-6y+9
subtrac y from both sides
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0=(y-5)(y-2)
therfore
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so 2 doesn't work



let's try 5
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true

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I meant to put the file but i guess it didnt upload.
Luba_88 [7]

Answer:

8

Step-by-step explanation:

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